International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 08 Issue: 04 | Apr 2021
p-ISSN: 2395-0072
www.irjet.net
Design and Fabrication of Invelox Wind Turbine Aiman Ahmed. A1, Asir Leevans.L2, Astle.M3, Sanju Edwards.M4 1Student,
Department of Mechanical Engineering, Ponjesly College of Engineering, Nagercoil-629003 Professor, Department of Mechanical Engineering, Ponjesly college of Engineering, Nagercoil-629003 ----------------------------------------------------------------------***--------------------------------------------------------------------ABSTRACT : A new concept in wind power harnessing is described which significantly outperforms traditional wind 4Assistant
turbines of the scale diameter and aerodynamic characteristics under the same wind conditions and it delivers significantly higher output, at reduced cost. Its first innovative feature is the elimination of tower-mounted turbines. These large, mechanically complex turbines, and the enormous towers used to hoist them into the sky, are the hallmark of today’s wind power industry. They are also expensive, unwieldy, inefficient, and hazardous to people and wildlife. The second innovative feature of INVELOX is that it captures wind flow through an omnidirectional intake and thereby there is no need for a passive or active yaw control. Third, it accelerates the flow within a shrouded Venturi section which is subsequently expanded and released into the ambient environment through a diffuser. Simulating the performance of this wind delivery system is quite challenging because of the complexity of the wind delivery system and its interaction with wind at the front end and with a turbine at the back end. The objectives of the present work are to fabricate the model and understand the flow field inside the INVELOX where the actual wind turbine is located as well the external flow field. Increased wind velocities result in significant improvement in the power output. Keywords: Invelox, venturi, windpower, omnidirectional, turbine
1. INTRODUCTION
inventor Charles F. Bush built the first large wind Mill for electricity in the USA in 1887, made of 144 cedar blades,
Humans have been putting the wind to use as far as 7500
it could generate 12 kilo watts for batteries or his
years ago, in sails by the Egyptians. The Greek Engineer
mansions lights. On the Eve of the World War II, the
Heron of Alexandria designed a wind wheel in the first
world’s first megawatt turbine- a large machine with 98-
century A.D., the earliest known effort to use wind of
foot blades began delivering electricity to local grid in
powering a machine. [3] Persians built a type of windmill
Vermont.
known as a Panemone sometime between 500 and 900
1.1ADVANTAGES OF WINDPOWER
A.D., it comprised a vertical shaft attached to light weight
wooden blades that had sails made of reeds or cloth.
Wind is a domestic source of energy. The
Within a few centuries, windmills of vertical designs –
nation's
and with either vertical or horizontal shafts- were built
inexhaustible. Over the past 10 years, U.S. wind
across the Middle East, central Asia, and eventually in
power capacity has grown 15% per year, and
India, China and Europe. These Windmills were used for
wind is now the largest source of renewable
grinding grains, draining land, pumping fresh water or
power in the United States.
salt water to make salt. Threshing, powering sawmills
wind
supply
is
abundant
and
It's sustainable. Wind is actually a form of solar
and other purposes. Although modern wind turbines
energy. Winds are caused by the heating of the
began to emerge in the 1970s they have been used to
atmosphere by the sun, the rotation of the Earth,
generate electricity since late 19th century. Ohio
and the Earth's surface irregularities. For as long
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